I’ve found the Rivals to be a bit faster than the RE-11. Though I’m not sure how much the extra 20mm the Rivals have contribute to that. If we can find a dry weekend, I’m going to test some ZII vs Rivals.
The DW do really well in the wet, that’s what we used last weekend in a downpour. I beat he guy on ZIIs by over a second, usually he’s in front of me. I like the DW tires for street tires, very civilised.